| Battle of Yerba Buena | |||||||
|---|---|---|---|---|---|---|---|
| Part of Conquest of California Mexican–American War | |||||||
._On_July_9,_1846,_Capt._Montgomery_of_the_Sloop_of_War_Portsmouth,_raised_the_American_Flag_in_the_plaza_and_seized_the_region_of_the_United_States_LCCN2004666425.jpg) | |||||||
| |||||||
| Belligerents | |||||||
 United States |
 Mexico | ||||||
| Commanders and leaders | |||||||
| John B. Montgomery | José de Jesús Noé | ||||||
| Strength | |||||||
| USS Portsmouth, 220 sailors and enlisted men, 27 marines | Unknown number of troops and artillery | ||||||
| Casualties and losses | |||||||
| 0 | 0 | ||||||
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The Battle of Yerba Buena was an engagement during the Mexican–American War, during which the U.S. Navy captured and occupied the town of Yerba Buena, California (now San Francisco), without firing a shot.